MC
Margaret Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Campbell across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Martha — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Campbell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 950 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Operator |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Campbell | Daughter | — | 23 | ~1917 |
| James Campbell | Head | — | 57 | ~1883 |
| Daniel Campbell | Son | — | 21 | ~1919 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 13
Suffolk, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 23
Suffolk-County, Massachusetts · implied b. ~1917 — 3 household members
| Surname | Campbell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 950 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Margaret Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Campbell (~0.92 confidence) and mother Martha Campbell (~0.92 confidence) and father James Campbell (~0.92 confidence) and father James Campbell (~0.92 confidence) and mother Martha Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Campbell
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Martha Campbell
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
James Campbell
b. ~1883
Source father
● Household
· direct · ~0.92
Father
James Campbell
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Martha Campbell
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Campbell
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Daniel Campbell
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01681-00325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rhoda Maillett | 28 | Daughter | Teacher | Massachusetts |
| 2 | Joseph M | 12 | Nephew | — | Massachusetts |
| 4 | Albert Ettinger | 32 | Head | Salesman | Massachusetts |
| 5 | Ida Ettinger | 32 | Wife | — | Massachusetts |
| 6 | Garon Ettinger | 5 | Son | — | Massachusetts |
| 7 | Joan Ettinger | 2 | Daughter | — | Massachusetts |
| 8 | Rose Wohlman | 71 | Head | — | Russia |
| 9 | Betty Hill | 49 | Daughter | Nurse | Russia |
| 10 | Ruth D Hill | 26 | Granddaughter | Salesgirl | Massachusetts |
| 11 | Shepard Morse | 80 | Head | — | Poland |
| 12 | Sarah Morse | 73 | Wife | — | Massachusetts |
| 13 | Hilda Gotshardt | 67 | Sister-in-law | — | Massachusetts |
| 14 | Harold Greenfield | 40 | Head | Salesman | Massachusetts |
| 15 | Helen Greenfield | 37 | Wife | — | Massachusetts |
| 16 | Daniel Greenfield | 15 | Son | — | Massachusetts |
| 17 | Annabelle Eem | 49 | Head | — | Austria |
| 18 | Benjamin Ashtol | 49 | Lodger | — | Massachusetts |
| 19 | Samuel Siverty | 65 | Head | Salesman | Russia |
| 20 | Sarah Siverty | 65 | Wife | — | Russia |
| 21 | James M Campbell | 57 | Head | Janitor | Scotland |
| 22 | Daniel Campbell | 21 | Son | Coil Winder | Massachusetts |
| 23 | Margaret Campbell THIS PERSON | 23 | Daughter | Operator | Massachusetts |
| 24 | James H Flaherty | 58 | Head | Pressman | Massachusetts |
| 25 | Florence A Flaherty | 53 | Wife | — | Massachusetts |
| 26 | Edward Siverty | 25 | Head | Shipper | Massachusetts |
| 27 | Mary Siverty | 24 | Wife | Clerk (Billing) | Massachusetts |
| 28 | Sydney Richmond | 31 | Brother-in-law | Mechanic | Russia |
| 29 | Samuel Sheroff | 75 | Head | Shipper | Russia |
| 30 | Ida Sheroff | 39 | Wife | Clerk (Sales) | Massachusetts |
| 31 | Ruth Sheroff | 19 | Daughter | — | Massachusetts |
| 32 | Gerald Stapleford | 34 | Head | Chauffeur | Canada-Eng |
| 33 | Doris Stapleford | 37 | Wife | Bookkeeper | Massachusetts |
| 34 | David Stapleford | 2 | Son | — | Massachusetts |
| 35 | Lena Curren | 63 | Mother | — | England |
| 36 | Ralph Demopoulos | 20 | Step-Son | New Worker | Massachusetts |
| 37 | John B Macsermon | 30 | Lodger | Janitor | Massachusetts |
| 38 | John Gale | 44 | Head | Shipper | New Hampshire |
| 39 | Dorothy Gale | 40 | Wife | — | New Hampshire |
| 40 | Russell Gale | 20 | Son | — | Massachusetts |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)